Wales flanker Josh Navidi will miss the remainder of the Rugby World Cup with a hamstring injury, according to head coach Warren Gatland.
Navidi, 28, was substituted in the first half of the 20-19 quarterfinal victory against France on Sunday.
“He’ll be ruled out,” Gatland told a news conference on Monday. “He’s no good. “It’s disappointing for him. We’ll keep him out here.
“In saying that, these games are so physical to have only lost one player is a real positive for us.”
Gatland said he is yet to decide on who will be called up as a replacement, but said Navidi would be replaced with a back rather than another forward.
Navidi has been Wales’ preferred option at No. 8 following the injury that ruled Taulupe Faletau out of the competition.
Gatland is also hopeful centre Jonathan Davies could return to action after missing the win against France.
“He’s been doing rehab and recovery,” he added. “Hopefully he’ll be up and running for a very light session tomorrow. Hopefully he’s fit and available.”
Wales will face South Africa in the semifinals on Sunday as they attempt to reach the World Cup final for the first time in their history.